Is UA552 delayed?
No delay reported yet — UA552 is scheduled to leave San Francisco at 21:50 on Sep 27 and reach Ontario at 05:56 (Sep 28) (as of Sep 28, 02:39 UTC). Over its last 22 recorded arrivals, 4 landed more than 15 min late.
Each route and date is shown separately. Confirm that both airports match your booking.
No live update yet
Showing the published schedule until live times are reported.
Update time unavailable
Departure
San Francisco
SFO
Scheduled
Sep 27
Arrival
Ontario
ONT
Scheduled
Sep 28
Times shown in airport local time
Service date: · Scheduled departure date (America/Los_Angeles)
Think UA552 runs late today? Delayed is trading at 15¢ — pays out x6.67.
Will United Airlines UAL 552 from San Francisco to Ontario arrive on time, be delayed, or be cancelled on Sep 27?Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
- Not available
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
- Not available
Market prices express trading expectations about a contract’s stated threshold. They do not confirm airline status. The linked market shows its terms and activity.
17 min early
This update may be out of date. Check with your airline.
Update time unavailable
Departure
Minneapolis
MSP
Scheduled
Not available
Arrival
San Francisco
SFO
Estimated
Scheduled 19:29
Sep 27
Times shown in airport local time
Service date: · Scheduled arrival date; departure time unavailable (America/Los_Angeles)
Flight details
Departure · UTC
- Scheduled
- Not available
- Estimated
- Not available
- Actual
- Not available
Arrival · UTC
- Scheduled
- Estimated
- Actual
- Not available
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 7 min early
San Francisco → Ontario
- 6 min early
San Francisco → Ontario
- 60 min late
Minneapolis → San Francisco
- 21 min late
San Francisco → Ontario
- 34 min late
Minneapolis → San Francisco
Flight history and details
Aug 29, 2026 — Sep 28, 2026
- Observed arrivals
- 22
- Arrivals over 15 minutes late
- 4
- Observed cancellations
- 0
- Observed occurrences
- 26
Results compare scheduled and actual arrival times. Cancelled or diverted flights are excluded. Some flights may be missing from the history.
| Service date | Departure | Arrival | Actual | Arrival delay (minutes) |
|---|---|---|---|---|
| Sep 26, 2026Arrived | San Francisco | Ontario | -7 | |
| Sep 25, 2026Arrived | San Francisco | Ontario | -6 | |
| Sep 25, 2026Arrived | Minneapolis | San Francisco | 60 | |
| Sep 24, 2026Arrived | San Francisco | Ontario | 21 | |
| Sep 24, 2026Arrived | Minneapolis | San Francisco | 34 | |
| Sep 23, 2026Arrived | Sacramento | Houston | -9 | |
| Sep 22, 2026Arrived | Sacramento | Houston | 2 | |
| Sep 21, 2026Arrived | San Francisco | Ontario | -17 | |
| Sep 20, 2026Arrived | San Francisco | Ontario | -2 | |
| Sep 19, 2026Arrived | Sacramento | Houston | -15 | |
| Sep 18, 2026Arrived | San Francisco | Ontario | -25 | |
| Sep 17, 2026Arrived | San Francisco | Ontario | 28 | |
| Sep 16, 2026Arrived | Sacramento | Houston | -16 | |
| Sep 14, 2026Arrived | San Francisco | Ontario | -28 | |
| Sep 12, 2026Arrived | Sacramento | Houston | -25 | |
| Sep 11, 2026Arrived | Houston | South Bend | -8 | |
| Sep 9, 2026Arrived | Sacramento | Houston | -25 | |
| Sep 8, 2026Arrived | Sacramento | Houston | -11 | |
| Sep 7, 2026Arrived | San Francisco | Ontario | -7 | |
| Sep 5, 2026Arrived | Raleigh/Durham | San Francisco | -20 | |
| Sep 4, 2026Arrived | San Francisco | Ontario | -23 | |
| Sep 3, 2026Arrived | San Francisco | Ontario | -2 |